Avaliações de institutos de sondagens dos EUA

582 institutos avaliados pelo FiveThirtyEight (congelado após o ciclo de 2024) e pelo Silver Bulletin (arquivo de 2025).

Avaliações de institutos de sondagens dos EUA
Instituto	Nota do Silver Bulletin	Avaliação do FiveThirtyEight (0–3)	Sondagens analisadas
AtlasIntel	A+	2,7	91
Marquette University Law School	A/B	3	17
The Washington Post	A+	3	98
Research & Polling Inc.	A	2,1	44
The New York Times/Siena College	A	3	116
Cygnal	A	2,1	58
SurveyUSA	A	2,8	871
Siena College	A	2,7	67
Beacon Research/Shaw & Co. Research	A	2,8	62
Alaska Survey Research	A/B	1,9	16
OnMessage Inc.	A	1,1	32
TIPP Insights	A-	1,8	51
Emerson College	A-	2,9	317
Landmark Communications	A-	2,1	41
Monmouth University	A-	2,9	131
Data Orbital	A/B	2,9	18
University of North Florida	A/B	2,8	14
MassINC Polling Group	A/B	2,8	22
Marist College	A-	2,9	213
Public Policy Institute of California	A/B	2,5	18
Public Policy Polling	A-	1,4	468
University of California Berkeley	A/B	2,5	8
CBS News/The New York Times	A-	—	66
Christopher Newport University	A/B	2,8	15
Mason-Dixon Polling & Strategy	A-	2,6	446
Strategic Vision LLC	F	—	133
Suffolk University	A-	2,9	110
Stockton University	A/B	2,6	12
Field Research Corp. (Field Poll)	A/B	—	25
Quinnipiac University	B+	2,8	228
Los Angeles Times	A/B	—	37
Hart Research Associates/Public Opinion Strategies	B+	2,6	37
Public Opinion Strategies	B+	1,6	80
Susquehanna Polling & Research Inc.	B+	2,3	56
Grove Insight	A/B	—	29
OH Predictive Insights	B+	2,4	22
Echelon Insights	B+	2,7	18
University of Massachusetts Lowell	B+	2,9	38
Trafalgar Group	B+	0,7	142
Saint Anselm College	A/B	2,4	14
co/efficient	B+	1,1	22
Greenberg Quinlan Rosner/American Viewpoint	A/B	—	8
RKM Research and Communications Inc.	A/B	—	35
National Research	A/B	2	15
Tarrance Group	A/B	1,6	32
Dittman Research	A/B	1,7	10
RRH Elections	A/B	1,9	15
Selzer	B+	2,8	59
Fairleigh Dickinson University	A/B	2,6	22
The Winston Group	A/B	2,5	11
Opinion Dynamics	A/B	—	34
University of Connecticut	A/B	—	11
Elway Research	A/B	1,9	21
Angus Reid Global	A/B	2	32
Muhlenberg College	B+	2,8	36
Gallup	B+	2,5	84
Fabrizio, Lee & Associates	A/B	1,7	11
Elon University	A/B	2,5	8
Pharos Research Group	F	—	33
Florida Atlantic University	A/B	2	9
Garin-Hart-Yang Research Group	B+	1	33
Abt Associates	A/B	2,5	13
National Journal	A/B	—	12
Temple University	A/B	—	6
Princeton Survey Research Associates International	B/C	—	35
Landmark Communications/Rosetta Stone Communications	B/C	—	11
Michigan State University	B/C	2,5	2
Vox Populi Polling	B/C	—	19
KAConsulting	B/C	1,5	11
KRC Research	B/C	—	22
Western New England University	B/C	2,5	11
InsiderAdvantage	B	2	207
Lake Research Partners	B/C	1,2	12
Lake Research Partners/The Tarrance Group	B/C	2,5	33
East Carolina University	B/C	2,6	18
North Star Opinion Research	B/C	1,1	13
YouGov	B	3	519
Fleming & Associates	B/C	1,9	18
University of Cincinnati (Ohio Poll)	B/C	—	39
University of Arkansas	B/C	2,5	10
GfK Group	B/C	—	21
Rasmussen Reports	B	—	797
New England College Polling Center	B/C	—	19
Greenberg Quinlan Rosner	B	2	61
WPA Intelligence	B/C	1,7	20
SEA Polling & Strategic Design	B/C	1,6	14
Public Religion Research Institute	B/C	1,8	1
Optimus Analytics	B/C	—	17
Public Opinion Strategies/Hamilton Campaigns (Texas Credit Union League)	B/C	—	2
Glengariff Group	B/C	1,5	16
RAND (American Life Panel)	B/C	—	4
Magellan Strategies	B/C	1,9	18
Concord Public Opinion Partners	B/C	1,1	3
EPIC-MRA	B	1,9	58
Pew Research Center	B/C	2,5	25
Indiana University	B/C	—	2
Wirthlin Worldwide	B/C	—	4
Clemson University	B/C	—	8
St. Pete Polls	B	2,4	30
Knowledge Networks	B/C	—	4
Harper Polling	B/C	—	14
Belden Russonello	B/C	—	3
Louis Harris & Associates	B/C	—	2
Wick	B/C	1,4	16
Civiqs	B	2,4	43
Gravis Marketing/Kaplan Strategies	B	2	157
Harris Insights & Analytics	B	1,5	193
Blum & Weprin Associates	B/C	—	19
Pasquines	B/C	1,9	4
University of Florida	B/C	—	1
Gordon S. Black Corp.	B/C	—	2
University of Georgia	B/C	2,2	7
Ohio State University	B/C	—	1
J.L. Partners	B/C	1,6	10
Harstad Strategic Research	B/C	1	11
RT Strategies	B/C	—	45
Polling Company/Global Strategy Group	B/C	—	4
GQR Research/Public Opinion Strategies	B/C	—	1
Clarity Campaign Labs	B/C	1,6	15
Harvard University	B/C	—	1
Spry Strategies	B/C	1,5	5
Victory Research	B/C	1,8	11
Data for Progress	B	2,6	114
RMG Research	B	2,3	28
Praecones Analytica	B/C	2	5
Starboard Communications	B/C	1,7	4
Franklin & Marshall College	B/C	2,4	25
Ward Research	B/C	2	15
Mellman Group	B/C	1,2	28
Ciruli Associates	B/C	1,6	20
Strategic National	B/C	1,6	4
Patriot Polling	B-	1,1	22
Dan Jones & Associates	B/C	1,9	40
Middle Tennessee State University	B/C	—	5
Remington Research Group	B-	2,6	55
Leger	B/C	2	13
Keating Research	B/C	1,5	6
Ragnar Research Partners	B/C	1,3	3
Blueprint Polling	B/C	2,4	8
Yankelovich Partners Inc.	B/C	—	7
St. Norbert College	B/C	1,4	12
Pan Atlantic Research	B/C	2,1	17
Strategies 360	B/C	1,3	9
Redfield & Wilton Strategies	B-	1,8	45
Market Shares Corp.	B/C	—	25
Columbus Dispatch	B/C	—	22
CVOTER	B/C	1,8	6
DCCC	B/C	1,1	10
ROI Rocket	B/C	1,8	3
Cardinal Point Analytics (CardinalGPS)	B/C	1,6	3
Lucid	B/C	—	25
Lee Business School (University of Nevada Las Vegas)	B/C	—	5
Edgewater Research/My People Vote	B/C	2	3
GBAO	B/C	1,2	14
Research 2000	F	—	278
University of South Alabama	B/C	—	9
OpinionWorks	B/C	1,8	7
Axis Research	B/C	—	2
Fabrizio, Lee & Associates/GBAO	B/C	—	2
High Point University	B/C	2,5	5
David Binder Research	B/C	1,7	3
Big Village	B-	1,2	107
Impact Research	B/C	1,5	22
We Ask America	B-	—	56
Market Research Institute Inc.	B/C	—	11
University of New Hampshire	B-	2,6	150
RBI Strategies & Research	B/C	1,3	4
Ogden & Fry	B/C	1,6	3
Louisville Courier-Journal	B/C	—	10
DFM Research	B/C	1,3	10
Ipsos	B-	2,8	116
Frederick Polls	B/C	1,6	8
Kiley & Company	B/C	—	5
BSP Research/Shaw & Company Research	B/C	2	2
Focaldata	B/C	—	9
Riley Research Associates	B/C	2	7
Schoen Cooperman Research	B/C	1,5	2
BK Strategies	B/C	1,3	3
Iowa State University	B/C	—	3
Benenson Strategy Group	B/C	1,5	12
McKeon & Associates	B/C	—	3
Alabama State University	B/C	—	4
Maine People's Resource Center	B/C	1,9	14
El Nuevo Día/The Research Office	B/C	1,7	4
University of Washington	B/C	—	9
Latino Decisions	B/C	—	2
University of New Orleans	B/C	2	13
Meeting Street Insights	B/C	1,4	5
Orion Strategies	B/C	1,8	4
Big Data Poll	F	1,1	6
Richard Day Research	B/C	—	11
GS Strategy Group	B/C	1,3	2
Tulchin Research	B/C	0,9	3
IVR Polls	B/C	—	4
Google Consumer Surveys	B/C	—	24
John Zogby Strategies	B/C	1,8	4
Potomac Incorporated	B/C	—	8
Keating Research/OnSight Public Affairs/Melanson	B/C	—	3
MWR Strategies	B/C	—	2
University of Massachusetts (Amherst)	B/C	—	11
MSR Group	B/C	1,8	6
OnPoint	B/C	—	6
Change Research	B-	1,4	115
JMC Analytics	B/C	1,8	13
Master Image	B/C	—	2
Douglas Fulmer & Associates	B/C	1,4	2
Basswood Research	B/C	1,1	4
Winthrop University	B/C	2,5	3
Northern Arizona University	B/C	—	4
Castleton University	B/C	—	3
Zogby Analytics	B-	1,2	494
Tufts University	B/C	1,8	3
Torchlight Strategies	B/C	—	1
Gotham Polling & Analytics	B/C	—	1
M3 Strategies	B/C	—	1
CJ&N	B/C	—	3
Missouri State University	B/C	—	3
Financial Dynamics	B/C	—	15
Marshall Marketing	B/C	—	4
APC Research	B/C	—	2
Dixie Strategies	B/C	—	11
The Tyson Group	B/C	1,1	14
American Viewpoint	B/C	1,2	9
Overtime Politics	F	—	12
Morning Consult	B-	1,9	114
Slingshot Strategies	B/C	1,4	2
CWS Research	B/C	1,6	1
Fabrizio Lee & Associates/Impact Research	B/C	1,7	1
Washington College	B/C	1,8	1
MFour Mobile Research	B/C	—	2
Wiese Research Associates	B/C	—	7
Merrill Poll	B/C	—	2
Braun Research	B/C	2,3	6
University of Southern California	B/C	2,4	13
Rethink Priorities	F	—	2
Park Street Strategies	B/C	1,8	1
Data Targeting	B/C	1,4	1
Southern Media & Opinion Research	B/C	—	7
University of Texas at Tyler	B/C	1,8	10
NewsNation	B/C	1,6	1
Minneapolis Star Tribune	B/C	—	14
The Citadel	B/C	—	3
Blumenthal Research Daily	F	—	2
Cherry Communications	B/C	1	8
PSB Research	B/C	1,6	19
Mason Strategies	B/C	1,9	1
1892 Polling	B/C	1,3	1
DHM Research	B/C	2,1	14
Ethridge & Associates LLC	B/C	—	6
Baruch College Survey Research	B/C	—	2
Montgomery Research	B/C	—	1
Research Co.	C+	2,4	83
Voter/Consumer Research	B/C	—	8
Bendixen & Amandi International	B/C	1	2
The Polling Company Inc./National Research Inc.	B/C	—	1
Valley Research	B/C	—	8
Personal Marketing Research	B/C	—	3
Franklin Pierce University	B/C	—	17
Behavior Research Center (Rocky Mountain Poll)	B/C	—	7
Market Solutions Group	B/C	—	4
Market Decisions Research	B/C	—	4
Scripps Howard	B/C	—	5
Forward Strategies	B/C	—	2
Targeted Persuasion	B/C	—	1
University of Houston	B/C	2,2	1
Singularis Group	B/C	1,4	1
CSP Polling	F	—	1
University of Wisconsin-Milwaukee	B/C	—	3
Reconnect Research/Probolsky Research	B/C	—	2
Beacon Research	B/C	0,9	5
JMC Analytics/Bold Blue Campaigns	B/C	—	5
National Public Affairs	B/C	—	1
Strategic Research Associates	B/C	1,8	5
Mercyhurst University	B/C	—	1
Odney	B/C	1,5	1
Diamond State Consulting Group	B/C	—	1
IMGE Insights	B/C	—	2
KG Polling	F	—	2
University of Tennessee	B/C	—	2
Jim Meader (KELOLAND-TV)	B/C	—	4
Virginia Commonwealth University	B/C	2,1	8
AYTM	B/C	—	4
Richmond Times-Dispatch	B/C	—	4
Global Strategy Group/National Research (Philadelphia Inquirer)	B/C	—	4
Manhattanville College	B/C	—	3
Garin-Hart-Yang/Global Strategy Group	B/C	—	1
War Room Logistics	B/C	—	1
The Polling Company Inc.	B/C	—	7
GreatBlue Research	B/C	2	2
Big Ten	B/C	—	10
African American Research Collaborative	B/C	0,8	1
Crantford Research	B/C	1,8	1
Jorge Benítez	B/C	1,6	4
Lincoln Institute	B/C	—	2
Seven Letter Insight	B/C	1,6	1
Quest Research Group	B/C	—	5
Strategy Research	B/C	—	2
Aspen Media & Market Research	B/C	—	3
Purple Strategies	B/C	—	4
Rivercity Polling	B/C	—	1
Probolsky Research	B/C	1,3	3
Florida International University/Univision	B/C	—	1
New Mexico State University	B/C	—	1
Drake Research & Strategy, Inc.	B/C	—	8
Myers Research & Strategic Services	B/C	—	2
Clarus Research Group	B/C	—	3
Morningside College	B/C	2	1
Thirty-Ninth Street Strategies	B/C	1,4	1
Frank N. Magid Associates Inc.	B/C	—	5
OurProgress (The Progress Campaign)	F	—	1
West Chester University	B/C	—	7
Canisius College	B/C	—	1
Central Surveys Inc.	B/C	—	1
ASA Marketing Group	B/C	—	1
Triumph Campaigns	B/C	—	1
Neighborhood Research and Media	B/C	1,3	3
BIGresearch	B/C	—	1
Moore Information Group	B/C	0,6	18
Cooper & Secrest	B/C	—	1
Escalent	B/C	—	1
Stetson University	B/C	1,5	4
Analytical Group	B/C	—	1
Penta	B/C	—	1
Dynamics Marketing	B/C	—	1
Vox Populi Communications	B/C	—	1
Diversified Research Inc	B/C	—	1
Centre College	B/C	—	1
Lauer, Lalley, Victoria	B/C	—	1
Market Trends Pacific	B/C	—	1
Cromer Group	B/C	—	1
Dynata	B/C	—	2
Dartmouth College	B/C	—	3
Global Strategy Group	B/C	1,8	26
Pacific Market Research	B/C	1,5	2
Liberty Opinion Research	B/C	—	1
NRECA Market Research	B/C	—	1
Wood Communications Group	B/C	—	1
Southeastern Louisiana University	B/C	—	8
University of Nevada Las Vegas	B/C	—	1
CallFire	B/C	—	4
Deltapoll	B/C	—	1
Zimmerman & Associates/Marketing Intelligence	B/C	—	3
TargetSmart	B/C	2	3
University of Wisconsin (Madison)	B/C	—	8
Rossman Group	B/C	—	1
Wick Communications	B/C	—	1
Capital Survey Research Center	B/C	—	13
Public Strategies Inc.	B/C	—	6
Targoz Market Research	C+	1,8	26
Victoria Research & Consulting	B/C	1,5	1
Becker Institute	B/C	—	5
Iona University	B/C	—	1
QEV Analytics	B/C	—	1
West Virginia Research Center	B/C	—	2
Florida Atlantic University/Mainstreet Research	C+	—	25
MarblePort	B/C	—	2
The Florida Poll	B/C	—	5
Rice University	B/C	—	2
Independent Market Research	B/C	—	2
CrossTarget	B/C	—	2
Alloy Analytics	B/C	1,6	1
Old Dominion University	B/C	—	1
TMR Research	B/C	—	2
Marketing Research Institute	B/C	—	1
Premise	B/C	1,9	1
A&A Research	B/C	—	1
Paradigm	B/C	—	2
Constituent Dynamics	B/C	—	7
SmithJohnson Opinion Research	B/C	1,4	1
Illinois Wesleyan University	B/C	—	3
Multi-Quest International	B/C	1,5	4
Decision Forecasting	B/C	—	3
Minnesota State University	B/C	—	4
Tulsa Surveys	B/C	—	1
TeleResearch Corporation	B/C	—	1
Feldman Group	B/C	—	2
Southern Research Group	B/C	—	1
Y2 Analytics	B/C	1,1	8
Harper Polling/Clarity Campaign Labs	B/C	—	1
Clout Research	B/C	0,7	16
Great Lakes Strategies Group	B/C	—	1
Montana State University Billings	B/C	1,5	11
California State University, Bakersfield	B/C	—	1
Howey Politics/DePauw University	B/C	—	7
Sky Research	B/C	—	1
Kimball Political Consulting	B/C	—	6
Detroit Free Press	B/C	—	1
University of Illinois at Chicago	B/C	—	1
Southern Opinion Research	B/C	—	2
Zata3	B/C	—	2
20/20 Insight	B/C	1,1	8
Opinion Consultants	B/C	—	2
University of North Carolina	B/C	—	1
GaPundit.com	B/C	—	2
New Frontier Strategy	B/C	—	2
Baselice & Associates	B/C	1,4	2
Arthur J. Finkelstein & Associates	B/C	—	1
Bannon Communications Research	B/C	—	2
MarketAide Services Inc.	B/C	—	1
Patinkin Research Strategies	B/C	1,3	4
Forman Center	B/C	—	2
Baydoun Consulting	B/C	—	6
Auburn University	B/C	1,5	2
Abacus Associates	B/C	—	2
American Pulse Research & Polling	B/C	—	2
SMS Research & Marketing Services	B/C	—	1
Global Strategy Group/GBAO (Navigator Research)	B/C	1,3	4
Ed Renwick/Loyola University New Orleans	B/C	—	10
Hays Research Group	B/C	1,1	9
Zia Poll	B/C	0,9	4
SocialSphere	B/C	1,7	2
Lester & Associates	B/C	1,3	1
Datamar Analytics	B/C	—	8
ccAdvertising	B/C	—	33
EMC Research	B/C	0,9	15
PSI	B/C	—	3
American Research Group	C+	2,3	280
Gazette Communications	B/C	—	2
LIT Data	B/C	—	4
Jeffrey Stonecash	B/C	—	1
Consumer Logic	B/C	—	2
Hoffman Research Group	B/C	1,7	3
Cometrends	B/C	—	1
Glover Park Group	B/C	—	1
Open Model Project	B/C	—	2
Univision/Latino Decisions/North Star Opinion Research	B/C	—	7
Neighbor	B/C	—	1
Normington, Petts & Associates	B/C	0,7	12
Lycoming College Polling Institute	B/C	—	3
Rainmaker Media Group	B/C	—	1
VCreek/AMG	B/C	1,1	1
The Kitchens Group	B/C	1,4	1
Lauer Johnson Research	B/C	—	1
University of Colorado (Boulder)	B/C	—	2
Saguaro Strategies	B/C	1,6	2
University of Alabama at Birmingham	B/C	—	2
Bold Decision	B/C	1,3	1
Phillips Academy	B/C	1,7	7
Ohio University	B/C	—	2
Hill Research Consultants	B/C	0,8	6
Hellenthal & Associates	B/C	—	5
Hendrix College	B/C	0,9	18
brilliant corners Research & Strategies	B/C	1	1
RMS Research	B/C	—	3
Data West Polling	B/C	—	2
Hunt Research	B/C	—	1
Gonzales Research & Marketing Strategies Inc.	B/C	1,2	10
WCIA-TV	B/C	—	2
HighGround Inc.	B/C	1,8	6
Nelson Research	B/C	1,4	1
Arizona State University	B/C	1,7	8
Hickman Analytics	B/C	1	1
The Justice Collaborative Institute	B/C	1,3	2
Cole Hargrave Snodgrass & Associates	B/C	1,5	5
Colby College	B/C	—	6
Thomas Partners Strategies/Optimus	B/C	—	2
Opinium	B/C	1,2	2
GCR & Associates	B/C	—	1
East Tennessee State University	B/C	—	2
Brandwatch Qriously	B/C	—	3
Consultoría Académica e Investigación Social LLC	B/C	—	2
Global Marketing Research Services	B/C	1,7	1
Market Research Insight	B/C	—	27
Victory Enterprises	B/C	1,6	1
Loras College	B/C	—	18
Victory Insights	B/C	1,3	9
Western Kentucky University	B/C	—	4
Bainbridge Media Group	B/C	—	1
Schapiro Group	B/C	—	2
SSRS	C	2,4	47
Miami Univerity	B/C	—	2
Marketing Resource Group (MRG)	B/C	1,8	10
SoonerPoll.com	B/C	1,8	26
Millersville University	B/C	—	5
Hampton University	B/C	1,4	4
Survation	B/C	—	2
Massie & Associates	B/C	—	2
Greg Smith & Associates	B/C	—	5
Citizen Data	B/C	0,9	12
BWD Global	B/C	—	2
University of Iowa	B/C	—	3
Roanoke College	B/C	2,6	22
Kiaer Research	B/C	1,4	2
DeSales University	B/C	—	1
SurveyMonkey	C	2	268
Swayable	C	—	89
Digital Research	B/C	1,4	21
IZQ Strategies	B/C	—	1
Repass	B/C	0,7	4
Bluegrass Community and Technical College	B/C	—	2
Marketing Workshop	B/C	—	8
Craciun Research Group	B/C	—	1
Momentum Analysis	B/C	—	3
TargetPoint	B/C	1,3	2
St. Cloud State University	B/C	1,4	17
Meredith College	B/C	1,6	6
Mitchell Research & Communications	C	2,4	82
Baldwin Wallace University	B/C	2,1	4
Merriman River Group	B/C	1,1	25
Truedot	B/C	—	2
Glascock Group	B/C	—	2
Elucd	B/C	—	4
Tomahawk Strategies	B/C	0,9	1
Carroll Strategies	B/C	—	5
Dane & Associates	B/C	—	2
GOP Calls	B/C	—	2
Amber Integrated	B/C	1,5	8
CPEC	B/C	—	2
Riggs Research Services	B/C	—	1
University of Minnesota	B/C	—	10
Thomas Partners Strategies	B/C	1	2
Target Insyght	B/C	1	6
Point Blank Political	B/C	1,4	6
Center Street PAC	C/D	1	4
Saint Leo University Polling Institute	C/D	1,3	6
Island Analytics & Marketing, LLC	C/D	0,9	1
University of Wyoming	C/D	0,6	5
FM3 Research	C/D	0,7	11
Rutgers University	C/D	2,3	19
Capen Analytics	C/D	—	1
McLaughlin & Associates	C/D	0,5	29
The Political Matrix/The Listener Group	C/D	0,7	12
Triton Polling & Research	C/D	—	3
RABA Research	C/D	1,3	9
Opinion Research Associates	C/D	—	14
Brigham Young University	C/D	1,3	4
Brown University	C/D	—	14
TCJ Research	F	—	132
Indiana University-Purdue University Fort Wayne (Downs Center)	C/D	—	3
Long Island University	C/D	1,1	4
Nielson Brothers Polling	C/D	—	11
Ascend Action	C/D	0,7	6
Jayhawk Consulting Services	C/D	0,9	2
Fort Hays State University	C/D	0,9	6
The Dartmouth Poll	C/D	—	4
Adrian Gray Consulting	—	—	—
AP-NORC	—	2	—
Ball State University Bowen Center for Public Affairs	—	1,6	—
Bendixen & Amandi International/Tarrance Group	—	—	—
Breakthrough Campaigns	—	1,5	—
California State University, Sacramento	—	—	—
CBS News	—	—	—
Clearview Research	—	0,8	—
CNN	—	2,8	—
Decision Analyst	—	—	—
Denno Research	—	1,8	—
DKC Analytics	—	—	—
Expedition Strategies	—	1,2	—
Fabrizio, Lee & Associates/McLaughlin & Associates	—	—	—
FTI Consulting	—	—	—
Gannett New Jersey	—	—	—
Global Strategy Group/Lester & Associates	—	—	—
Go Right Strategies	—	—	—
icitizen	—	—	—
Illinois Public Opinion	—	—	—
Indiana State University Department of Multidisciplinary Studies	—	—	—
Innovative Research Group	—	2,1	—
KFF	—	2,5	—
Mercury Public Affairs	—	—	—
NRSC	—	1,2	—
Ohio Northern University Institute for Civics and Public Policy	—	1,5	—
Osage Research	—	1	—
Pioneer Polling/Tarrance Group	—	2	—
Public First	—	1,7	—
Public Policy Polling/Harper Polling	—	—	—
Reconnect Research/Roanoke College Institute for Policy and Opinion Research	—	—	—
Sachs Media	—	1,5	—
Scott Rasmussen (Rasmussen Reports)	—	—	—
Southern Illinois University Paul Simon Public Policy Institute	—	2,5	—
The New York Times	—	—	—
The Washington Post/George Mason University Schar School of Policy and Government	—	2,7	—
The Washington Post/University of Maryland Center for Democracy and Civic Engagement	—	2,5	—
University of Georgia Survey Research Center	—	—	—
University of Illinois Springfield Survey Research Office	—	2,5	—
University of Massachusetts Department of Political Science/YouGov	—	2,4	—
University of Montana Social Science Research Laboratory	—	—	—
University of Nevada Department of Political Science	—	1,4	—
University of Southern California Schwarzenegger Institute for State and Global Policy	—	1,5	—
University of Utah Hinckley Institute of Politics	—	—	—
University of Wisconsin-Milwaukee Center for Urban Initiatives and Research	—	—	—
Whitman Insight Strategies	—	1,6	—
WT&S Consulting	—	—	—

Avaliações de institutos do FiveThirtyEight, CC BY 4.0, congeladas após o ciclo de 2024. Arquivo de avaliações de institutos do Silver Bulletin 2025, usado com crédito ao Silver Bulletin.